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<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
		<script src="http://libs.baidu.com/jquery/2.0.0/jquery.min.js"></script>
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	<body>
		<div id="">
			content
		</div>
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		<script type="text/javascript">
			$('#btn').click(function(){
				window.print();
			})
		</script>
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</html>
